Used 2018 Cadillac CT6 Sedan Consumer Reviews
Used CT6 for sale
After One Month - The Good The Bad and The Ugly
Bill Fisher, 09/14/2018
updated 09/28/2020
2018 Cadillac CT6 Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
22 of 29 people found this review helpful
My previous 4 cars have been in order Volkswagen Phaeton and a 2011 Hyundai Genesis, a 2013 Hyundai Genesis and a 2015 Hyundai Genesis. I have been driving my 3,6L Luxury Cadillac CT6 for 2,000 miles so far. My first driving impression is that for a large car, it drives much smaller. The steering is very precise and the car is definitely a point and shoot driver. To me that is a HUGE win. When cruising down the road it is quiet and silky. It's definitely the most serene car I've owned in my 65 years up until about 70 MPH. I think at higher speeds the Genesis G80 is quieter. This is my first Cadillac though because I've always despised floaty boat like drivers and that's how I always remember them. This is most definitely not that. Color me surprised. I actually test drove it when it was suggested by my favorite sales guy who moved from the Hyundai store to a Cadillac store. I fully intended on buying a Genesis G80 Sport and was waiting for one to arrive in a color I liked. (it never did) Hyundai needs to fix that. It lost a sale over the fact that a vehicle in anything other than gray or black was never available. But when I drove the Cadillac I fell in love with the ride. My hot buttons are Safety, Quiet and Handling. I will not stand for a car that wallows. The Cadillac checked all the boxes. I have had this, as I said, for one month and now comes the ugly. The car has been to the dealer more in one month than my three Genesis' combined did over 8 years. The initial quality problems, while not big issues shouldn't happen and I will list them. 1.) The console cover once fell right off in my hands when opening it. It was replaced under warranty. The fact is, it is the smallest center console I ever saw besides. It's almost a joke. Not a deal killer for sure but all the same. 2.) The right front wheel had a big gouge in it. It was replaced but I had to go back to the dealer a 2nd time because the air pressure monitor stopped working in that wheel after replacing it. 3.) When the car goes into 4 cylinder mode there is a vibration that seems like either the timing is off a little or their is a torque converter shudder. It is almost imperceptible. But I feel it. On the plus side, it doesn't go into 4 cylinder mode often. I find it hard to believe that Cadillac engineers designed it to drive that rough in 4 cylinder mode. My dealer doesn't feel its out of spec. 4.) The drivers seat is squeaking. It normally doesn't start until I have a few miles in and the car is warmer but it is getting increasingly bad. If I bounce my butt up and down I can make it sound like a cheap motel bed. When driving it is apparent when I hit a bump or corner. This just bugs the crap out of me and I am going to end up getting it fixed or shoot the car. I also think the dealer prep was lazy. I had to have them work on both my windshield and side view mirrors because of some kind of residue that made my windshield look sandblasted and the side view mirrors smudged and dirty looking. I tried resolving these myself with window cleaner and scrubbing to no avail. I don't know what they used but it's mostly OK now. I will say, once these issues are taken care of I will absolutely LOVE the car. But these niggling issues should not exist on a $65,000 car. That said, I love the drive, the quiet and the value. Would I buy it again? At this price point you aren't going to get another car that offers the quiet, size, the comfort and the safety, combined with the precision steering on anything like this. In short, if I don't buy a Genesis G80 Sport, my next option would be this. For reference, I test drove Acura, Audi (I own an A5 Cabriolet) Volvo, Genesis G80 Sport, Kia Stinger (wife vetoed that one) Buick Regal Wagon and Honda Accord. The Genesis does fall a little short on the Interior materials compared to the Cadillac. But the Genesis has a better infotainment system and real knobs for the radio and A/C controls. I'll call it a toss-up at this point. But if the Genesis had just a bit better interior it would have won out. UPDATE: More time has passed and I think it's time to say it like it is, I'm sorry I made the purchase. Very sorry. Here's my beef with this car. Any time it goes into 4 cylinder mode it virtually rumbles. HORRIBLE! The dealer says it's normal. I call BS. Second, and I'm sure they will fix it. Or at least I hope they will, the drivers seat squeaks worse and worse the longer I own it. How in the heck do they validate seats that squeak like these do? The infotainment system needs tweaking. The lack of buttons means there are always, and I mean always, going to be fingerprints all over that big beautiful 10 inch screen. Now these things may seem small to you, but when you are the owner and driving it, they matter. Especially the seats and the rumble. I'm sorry I made this purchase. I regret it. I should have bought a Genesis G80 Sport.
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Last chance at a big Cadillac sedan
Chuck W, 01/08/2021
updated 07/19/2024
2018 Cadillac CT6 Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
4 of 4 people found this review helpful
My wife and I have driven Cadillacs since 1987 when we bought a used 1982 El Dorado. We have owned everything including three Sedan DeVilles, a Fleetwood, three Seville SLSs, two DTSs, an Allante, an XTS and now a CT6. We bought the CT6 at the end of 2018 with 3K miles on it. Near-new Cadillacs used to be real bargains price-wise. We have driven the CT6 less than a thousand miles per month. It is an impressive-looking car in its Midnight Sky Metallic paint. It is quiet and comfortable. We don't drive aggressively so the standard 3.6 Liter V6 is okay, but I would prefer to have a V8 in my luxury car. It is much more enjoyable than the 2017 XTS Premium we owned for a year.The V6 has plenty of power but it sounds wimpy compared to the Northstar V8 in our 2010 DTS. The CT6 had zero problems for the first two years and then the transmission problem reared its head. The problem was fixed under warranty. Some irritating things about the CT6 are the too shallow trunk and a poorly placed power window switch. I can't get my rollator walker in without taking the seatback bar off and the power window switch for the driver's side front window is too far forward of where your hand rests. The result is that you mistakenly lower the rear window by mistake. Overall, the CT6 is as good as it gets for a big Cadillac sedan. Subjectively, I would say it is not as quiet or comfortable as the DTS was. Cadillac is chasing another demographic these days. I hope they don't totally forget about mature folks who want a sedan with a smooth, quiet ride and lots of style. 2023 Update. With the exception of the transmission software issue which was fixed under warranty, the CT6 has been trouble free through four and a half years and 55k miles until something broke in the drivers seat. It required replacement of the entire lower seat frame and all the motors it contains because it is serviced as a single unit. Car is driven by my wife who is a small lady. Have never had a driver's seat give out like this. With the dealers $199 an hour labor included, it cost us $1500. It took three weeks to get the part and make the repair, but the dealer provided a courtesy car (2023 XT4) at no cost. Not happy, but glad to have the quiet, comfortable CT6 back. 70,000 mile update: The transmission problem returned with a vengeance. The "fix" was a $700 transmission flush. Keep in mind if you are considering a Cadillac that has the 8-speed transmission that they do not appear to be reliable.
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Best EVER, The end of an Era...
JB, 07/11/2022
updated 01/16/2025
2018 Cadillac CT6 Premium Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
3 of 3 people found this review helpful
My 2000 Cadillac DHS had 327000 miles so I upgraded and bought this new CT6 premium luxury in 2018 with Super Cruise! Now I travel 200 or more miles at a time in complete comfort without touching the steering wheel. Last Full-Size Sedan they made. Only available NEW in China Now! 30mpg
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Nimble large vehicle
Kec C, 04/29/2024
2018 Cadillac CT6 Luxury 4dr Sedan AWD (3.6L 6cyl 8A)
1 of 1 people found this review helpful
GM (not just Cadillac) has a problem with its 8 speed transmissions up through 2018. Sometimes a flush with Mobil 1 (blue label) can take care of it. If not, then a replacement torque converter fixes the “shudder” problems. A spendy fix unless your powertrain warranty is still in effect. With its new torque converter our 2018 now runs like new again; with crisp handling, good response from the 3.6 liter engine and a very comfortable ride.
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good car..almost
jaybo, 10/11/2022
2018 Cadillac CT6 Platinum 4dr Sedan AWD (3.0L 6cyl Turbo 8A)
1 of 1 people found this review helpful
The CT 6 is a solid car, reliable but damn expensive to own and operate. If you got the scratch, this car will satisfy the itch, but like i said, this car scratch is intense. The CT6 got that old time flair with enough modern to satisfy without looking like a glorified jukebox like how the cars look today. If I wanted a car that was a lightshow I would have gone to Vegas. If you want solid that looks and feels like, and most importantly drives like a luxury driving machine, this car will more than satisfy you.
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